New Single-Family Housing Construction (except Operative Builders), New Multifamily Housing Construction (except Operative Builders), Industrial Building Construction, Commercial and Institutional Building Construction, Power and Communication Line and Related Structures Construction

Hydroelectric Power Generation, Power and Communication Line and Related Structures Construction, Mechanical Power Transmission Equipment Manufacturing, Motor Vehicle Transmission and Power Train Parts Manufacturing, Regulation and Administration of Transportation Program

New Single-Family Housing Construction (except Operative Builders), New Multifamily Housing Construction (except Operative Builders), Industrial Building Construction, Highway, Street, and Bridge Construction

Construction Sand and Gravel Mining, Water and Sewer Line and Related Structures Construction, Highway, Street, and Bridge Construction, Other Heavy and Civil Engineering Construction, Masonry Contractors

Water and Sewer Line and Related Structures Construction